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由 H3PMox W12 -x O4 0 · n H2 O( x=0 ,1,3,9,11,12 )和 N -甲基吡咯烷酮合成了一系列分子组成为 [NMPH]3PMox W12 -x O4 0 · CH3CN的电荷转移化合物 ,用元素分析、红外光谱进行了表征 .结果表明 ,该系列化合物固体中阴离子和阳离子间存在强的相互作用 ;化合物在光照下发生分子内电荷转移 ,导致阳离子氧化和阴离子还原 ;ESR结果表明 ,阴离子还原处于单电子阶段 ;非线性光学性质研究表明 ,随化合物分子内钨取代数增多 ,化合物倍频效应增强 ;三阶非线性系数增大 .
A series of compounds with the molecular composition of [NMPH] 3PMox W12-x O 4 0 .CH 3 CN were synthesized from H3PMox W12-x O 4 0 · n H 2 O (x = 0,1,3,9,11,12) and N-methylpyrrolidone Of the charge-transfer compounds were characterized by elemental analysis and FTIR.The results showed that there was a strong interaction between the anions and the cations in the solid compounds of the series, and the charge transfer of the compounds occurred under the irradiation of light, resulting in the cation oxidation and the anion reduction. The results of ESR show that the anion reduction is in the single electron stage. The nonlinear optical properties show that the multiplicative effect of the compound increases with the increase of the tungsten substitution number in the molecule of the compound, and the third-order nonlinearity coefficient increases.